Window catch



W. H. F. JESKA.

WINDOW CATCH.

APPLICATION FIL-ED AuG.1. 1921.

1,425,598, Patented Aug. 15, 1922.

Willi@ ZJens/fa,

WILLIAM E. E'. JESKA, OF ST. PAUL, MINNESOTA.

WINDOW CATCH.

To all whom it may concern Be it known that l, lViLLmM H. F. JESKA, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented new and useful 'Improvements in VSTindOw Catches, of which the following is a specification.

lt is ny object to provde a novel and eliicient window catch which is designed to securely fasten both sashes of a window in any desired position.

further object of my invention is to provide simple and inexpensive means for locking` windows in partially open position.

Another object of my invention is to pro-` vide a device of this kind which is adapted to be quickly and easily mounted On any common type of window having vertically sliding sashes.

Other objects of my invention will appear and be more fully pointed out in the following specification and claims.

Referring to the drawings, which illustrate the best form of my device at present known to me, Figure 1 is a perspective view of my improved window catch mounted on a window of common typeiFig. 2 is a plan v'ew of the same, adjacent portions of the upper sash, guide strips and rope being shown in section; Fig. 3 is a section takenv on the line 3 3 of Fig. 2 and Fig. el is a section taken on the line 1 -l of Fig. 2.

The base plate 10 of my device is adapted to be secured to the upper surface of the lower sash 11 by means of screws 12 and a pair of upwardly projecting ears 13, in

.tcgral with the base 10, form a support for one end of an arm 14. on the other end of which is mounted a head 15. ri`his head l is slotted at 16 to receive the arm 14. and a rivet 1T. passing through said head and the end of said arm. pivotally joins said .ead and arm. rlwo abutments 1S and 19 e formed on the extremity of the head l5 engage the vertical surfaces, respectively,

Specification et" Letters Patent. patinte@ Autre 15, 15220 I Application filed August 18, 1921. i

Serial No. 493,203.

allows limited vertical movement of said wedge. A pair of circular depressions 28 are formed in opposite faces of the wedge 2&1 to facilitate raising said wedge as hercinafter described and rubber shoes 29 and 30, mounted, respectively, on the vertical surfaces of the abutment 18 and wedge 24, are provided to engage the adjacent surfaces of the window frame 2O and upper sash 23. y

The lower end ofthe arm 14 is pivotally supported between the ears 13 by means of a rivet 3l', and notches 32, in the Lipper edges of said ears., are adapted to be engaged by a latch 33 which is pvotally mounted on the upper surface of the farm 141 by means of a rivet 34.

Operation.

In use the base plate is secured to the upper surface ofthe lower sash 11', by means of the screws 12, far enough away from the vertical surface of the window frame 2O so that the arm 14 is supported in inclined p0- sition by the shoe 29 in engagement with the surface 20. lil/Then in this positionthe abutment 19 bears against the outer surface of the guide 21 and the shoe 30, on the wedge 211, bears against the adjacent surface of the upper sash 23. TWhen the arm 141 is in the inclined position the latch 33 is turned to engage the notches 32. Now if an attempt is made to raise the lower sash the cantalever action of the arm 14 will thrust the shoe 29 firmly against the frameso that upward movement of said sash is prevented and if an attempt is made to lower the upper' sash 23 the shoe 30, on the wedge 24, will draw said wedge downward, forcing the abutment 19 against the guide strip 21 and preventing downward movement of the latter sash. The latch 33 is provided to prevent a person outside of the building from disengaging my catch from the window frame by reaching in with a curved stick or the like. To disengage the wedge 24 from the upper sash it is only necessary to pull said wedge upward by grasping the depressions 28, and to make the whole catch inoperative the latch 33 is turned free of the notches 32 and the arm 14 carrying the head 15 is tilted backward to the position indicated in dotted lines in Fig. 4C. It will be readily understood that when my catch is in the locked position (the'full line position in the drawings) either or both sashes may be left pars 'tielly open` end firmly secured against further openlngg by persons outside the bruldingw llly device lslzhue eepeeiallyY epplireble lo buildings in which it is desired lo leave lne windows open 'for ventilation without danger ol" burglary.

Haring described iny inventionwhat I Gleim es new and desire to protect by Letters Patent is:

l. ln a eat/eh for a window haring; verni@ cally s idable sashee and guide strips `for saire sasbes, a plate adapted lio be Secured te the upper snr'laee or" `'lille lower saeln an arm tiltebly slijperted at one end on said plaie, a head mounted onthe 'free end. of said arm whereby said arm is` held in inclined position, abutmente formed on said head loseverally engagethe window 'iframe end cellier edge ofi a guide strip and means mounted on said headffor engagingbhe upper Sash` l p ln e catch for" a window having Vertr cally `elidable sfashes and guide strips 'for said sashes, a plate adapted to be secured to the upper Surface ofthe lower sash,y an arm tiltably supported et one end on said plaleJ7 a head pvolaally supported on the free end ef said arm whereby `said arm ie held in inclined position, abutinents formed on said head to severally engage `che window frame and outer edge of a `guide strip and a wedge arranged on said head to engage the upper sash.

ln a window oateh, a plate adapted to be secured to the upper surface of a window sesh, upwardly projecting eers formed on Said plate, an inclined arm tiltablywsupported al; its lower end between said ears e head arranged on the upper end of' said arm. to engage the window frame anda wedge mounted on said head and'forrned to enga the upper sash.` l 4l. ln a catch for a winflow having vertically elidable sashes and guide strips, lor

lill" said elles, a plate adapted to be Secured' lio the upper surface of A@he lower sash, ears on said plate, an erna tiltably Supported at one end between said ears a heed pivot-ally supported on the free end ol said arm whereby said arin isfheldin, inclined position, abu'lnents 'formed on'said lleadto seven ally engagelthe window `frame and outer` edge of e guide strip, a wedge' arranged on said head to engage the upper sash and a latch mounted on said arm to prevent movement of said abutrnente from engagement with said window frame, and guide strip. In testimony whereof, l have hereunto signed my naine to this specification.

VILLAM H. F. JESKA. 

